# Megapixel Calculator vs Retinal

The clearest difference is ads: Retinal at none against Megapixel Calculator's shown. Retinal also leads on update cadence (fortnightly vs every 10 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Megapixel Calculator ships an update every 10 months, Retinal fortnightly. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Megapixel Calculator | Retinal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/megapixel-calculator/id1452649309/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | Ad-supported | — |
| Size | 4 MB | 1 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tihomir Radev](https://appshunter.io/developer/1403507147) | [Nico Rohrbach](https://appshunter.io/developer/662717596) |

## What reviewers say

### Megapixel Calculator

[App page](https://appshunter.io/ios/app/megapixel-calculator/id1452649309)

This utility helps you understand screen and image resolutions. Calculate megapixels from dimensions or find dimensions from megapixels. It also includes a DPI calculator for screens.

**Highlights:** Calculate megapixels from dimensions, Calculate dimensions from megapixels, Determine aspect ratio, DPI calculator, Supports various resolutions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Retinal

[App page](https://appshunter.io/ios/app/retinal/id1564557619)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Megapixel Calculator free?

Megapixel Calculator is free to download, with no in-app purchases.

### Is Retinal free?

Retinal is free to download, with no in-app purchases.

### Do Megapixel Calculator or Retinal have ads?

Megapixel Calculator shows ads; Retinal does not.

### Which is updated more often, Megapixel Calculator or Retinal?

Megapixel Calculator ships an update every 10 months, and Retinal fortnightly. Most recently, Megapixel Calculator was updated on October 22, 2026 and Retinal on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*